Catheter



FIG. 1 is a perspective view of a catheter embodying the new design.

FIG. 2 is a front view thereof.

FIG. 3 is a rear view thereof.

FIG. 4 is a first side view thereof.

FIG. 5 is a second side view thereof.

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

All features in broken lines are for the purpose of illustrating environmental structure and form no part of the claimed subject matter. 

CLAIM The ornamental design for a catheter, as shown and described herein. 